Cities of the World Photo-Quiz

Guess the names of the 220 most famous cities in the world looking at the pictures of their landmarks or skyline. Is it Houston or Dallas? There are three levels in this free game: 1) Cities 1 - easier ones, such as Sydney, Detroit, Cape Town and other well-known cities. 2) Cities 2 - more difficult to guess: Casablanca, Calgary, Antigua Guatemala. 3) Countries - guess in which country this city i…